SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which layer of earth is made of molten iron and magnesium rock?
A
core
B
mantle
C
crust
D
None of the above
Explanation: 

Detailed explanation-1: -The core is the centre of the earth and is made up of two parts: the liquid outer core and solid inner core. The outer core is made of nickel, iron and molten rock.

Detailed explanation-2: -Beneath the mantle lies the core. The outer core is a liquid mix of iron and nickel, but the inner core is solid metal. Sometimes, hot molten rock, called magma, bursts through Earth’s surface in the form of a volcano. Earth’s inner core is as hot as the surface of the sun-about 10, 000ºF (5, 500ºC).

Detailed explanation-3: -The rocks that make up Earth’s mantle are mostly silicates-a wide variety of compounds that share a silicon and oxygen structure. Common silicates found in the mantle include olivine, garnet, and pyroxene. The other major type of rock found in the mantle is magnesium oxide.

Detailed explanation-4: -The molten layer is located about 100 miles from the surface and is part of the asthenosphere, which sits under the Earth’s tectonic plates in the upper mantle. The asthenosphere is important for plate tectonics because it forms a relatively soft boundary that lets tectonic plates move through the mantle.

There is 1 question to complete.